Hearing some thunder. This should be the leading edge of the stronger winds.
Latest from Mount Holly-
A strong perturbation, now evident on moisture- channel imagery over the Great Lakes region, was sampled at 500 mb in the Upper Midwest with an attendant 90+ kt jet streak surging southeastward. The 500-mb temperatures were quite cold for this time of year near the center of the low, with readings near or below -30C in northern Michigan into central Ontario. Intense 850-mb cold advection was occurring in the Great Lakes region and is racing southeastward into the Appalachians this afternoon.
A band of showers in advance of the aforementioned perturbation had developed in the central Appalachians and will likely move through portions of the area late this afternoon and early this evening, especially for the southern half of the CWA. Nudged PoPs upward just a little bit more, based on upstream radar trends. With 40-50 kt winds at the top of the mixed layer, would expect strong to locally damaging wind gusts in proximity to these showers. Synoptic-scale winds will then surge for a time after the stronger cold advection sweeps across the area this evening, collocated with intense surface- pressure rises behind the reinforcing front late this afternoon. Models have trended slightly lower with gusts this afternoon/evening, but they also have verified on the low side so far today. As a result, continued to forecast winds higher than guidance, with the peak timing generally 21z to 03z with a diminishing trend thereafter as the surface pressure rises gradually lessen. All of this said, the high wind warning was unchanged with this update, with numerous impacts expected across the region.